Regenerative chamber



April 18, 1933. w J. |RW|N 1,904,237

REGENERATIVE HAMQER Filed July .6, 1932 2 Sheets-Sheet l Aprifl H8, 19w. J. IRWIN REGENERATIVE CHAMBER 2 Sheets-Sheet 2 Filed July 6, 1932Patented Apr. 18, 1933 umran STATES PATENT; OFFICE WILLIAM J. IRWIN, 0FWILKINSBURG, PENNSYLVANIA REGENERATIVE CHAMBER Application filed Italy6, late. Serial Na. @1319 is to eliminate the above undesirablefeaturesof current regenerativefurnace systems. An-

other object is to provide a construction which will effect thisimprovement without incidentally materially increasing the constructioncosts. Other objects may be inferred from the following disclosure ofvarious specific forms of the invention as applied to an open hearthsregenerator.

Having reference to the accompanying drawings:

Figure 1 is a horizontal cross-section taken from the broken line II inFigure 3.

Figures 2 and 3 are vertical cross-sections from the broken lines IIIIand IIIIII in Figure 1, and

Figures 4 and 5 are cross-sections from the lines IVIV and V-V in Figure1.

The above show a brick or tile checkerwork 1 having an upper chamber 2and a lower chamber 3. The upper chamber is connected to the furnacescombustion chamber by an uptake 4 and slag pockets 5, and its lowerchamber is connected by a flue 6 to either a stack, gas or air main,depending upon the furnaces heating cycle and whether this particularunit is preheating air or gas. Although the usual brick checkerwork isillustrated, it is to be understood that the invention is applicable toany form of heat regenerator unit. I

The uneven flow through the checkerwork 1 mentioned in the forepart ofthe specification results from the velocity of the gases through thechambers 2 or 3, which carries it to their ends and there forces itupwardly or downwardly. Thus the most cooled part receives the leastheat and the most heated part receives the least of the gases to becooled.

In the present instance the top chambers neck 7 is constructed with adownwardly inclined roof 8 which is shaped to create a directed gasimpingement against this end of the checkerwork 1, which is the pointordinarily receiving the least flow. Also, the flue 6 is constructed toangle upwardly, its gases striking the bottom of the'checkerwork 1 nearthe flues mouth. This last also creates a directed gas impingementagainst the bottom of the checkerwork 1 adjacent the flues mouth, whichis another point heretofore ordinarily receiving the least fiow.

The above construction causes a substantially even gaseous flow throughthe checkerwork 1 because the gaseous stream strikes the checkerworkwith their full velocities at the points which are normally neglected.The roofs of the chambers 2 and 3 arepreferably constructed to graduallyapproach the surfaces of the checkerwork 1, and the gases which aredeflected after impinging the checkerwork 1 at their points of. entrancepass to the ends of these chambers and are gradually forced through thecheckerwork.

The essential feature of this invention is the direction of the gasesflow against that part of the checkerwork which is normally neglected.Therefore, the flue 6, and the roof 8 of the neck 7 should mergesmoothly with the top and bottom of the chambers 2 and 3 so that a truedirected gas flow results.

As far as .described, the invention applies particularly to aregenerator unit to whose chambers the gaseous flows are introduced inalinement with their longitudinal center lines. In practice, however,the flow introduction is frequently at an angle to these center lines.This also causes the aforementioned dificultles and may be remedied bythe invention.

Such undesirable efiects may be diminished with. Preferably, thesedeflectors are in the formof a halved pyramid whose base and sideportions fit the passageways corners which are most remote from theregenerator unit. Their apices do not completely reach to the otherextreme of the side walls of these passageways. This leaves straightportions 9 on the original passageways and prevents a pocketing actionof the gaseous flow. Also, the various proportions and shapes of all thedisclosed matter may be changed to accommodate operating conditionsencountered.

Although a specific form of this'i'nvention has been shown and describedin accordance with the patent statutes, it is not intended to limit thescope thereof exactly thereto, except as defined by the followingclaims. f v

I claim:

' 1. The combination of a heat regenerating unit, chambers extending thelengths of the open sides of said unit, and passageways communicatingwith one end of each of said chambers at opposite ends of said unit, oneor more of said passageways being constructed so their surfaces remotefrom said unit angle theretowards and terminate thereover.

2. The combination of a heat regenerating unit, chambers extending thelengths of the open sides of said unit, passageways communicating withone end of each of said chambers at opposite ends of said unit and at anangle thereto, and one or more deflectors arranged adjacent said unitand on the sides of one or more of said passageways forming acute anglestherewith.

' 3. The combination of a heat regenerating unit, chambers extending thelengths of the open sides of said unit, passageways communicating withoneend of each of said chambers at opposite ends of said unit and one ormore being at an angle thereto, and pyramidic deflectors constructed andarranged in the corner portions of one or more of said passagewaysremote from said unit and on their side or sides forming acute anglestherewith.

4. The combination of a heat regenerating unit, chambers extending thelengths of the open sides of said unit, passageways communicating withone end of each of said chambers at opposite ends of said unit and at'an angle thereto, pyramidic deflectors constructed and arranged in thecorner portions of said passageways remove from said unit and on theirsides-forming acute angles therewith, the apex portions of saiddeflectors merging with the sides of said pa'ssageways on which they areconstructed before reaching the opposite corner portions of those sides.

5. The combination of a heat regenerating unit, chambers extending thelength of said least one of said passageways for further deflecting thegases into said unit. I

6. The combination of a heat regenerating unit, an intake passage thatdeviates sidewise to the regenerator unit, a deflector located on theside of the passage that forms an acute angle with the adjoining side ofthe regenerator unit in plan, said deflector being of variable widthaslseen in successive cross-sections at right angles to the axis of thepassage, and the maximum width of each cross-section being adjacentthatside of said passage most remote from said unit.

In testimony whereof, I have hereunto set WILLIAM J. lR-W IN.

- my hand.

unit to the top and bottom sides'thereof,

passageways communicating with one end of each of said chambers atopposite ends of said unit and terminating over said unit, the pas-CERTIFICATE OF CORRECTION.

Patent No. 1,904,237.

' -WILLIAM J,- IRWIN.

. it is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 2,line 53, claim 4, for "remove" read "remote"; and that the said LettersPatent should be read with this correction therein that the samemayconform to the record of the case in the Patent Office. a

7 Signed and sealed this l3th day of June, A.'D. .1933.

M. J. Moore.

(Seal) Acting Commissioner of Patents.

April' 18, 1933.

